You need garden edging for a garden with a perimeter of 14m. Garden edging comes in 1800mm lengths. How many lengths will you need to buy to have enough edging for the entire perimeter?

To find out how many lengths of garden edging you'll need, follow these steps:

1. **Convert the garden edging length to meters**:  
   Each length is 1800 mm. Since there are 1000 mm in a meter, this is:
   \[
   1800 \, \text{mm} = 1.8 \, \text{m}
   \]

2. **Determine how many lengths are needed**:  
   The total perimeter is 14 meters. To calculate the number of 1.8-meter lengths required, divide the perimeter by the length of each edging:
   \[
   \frac{14 \, \text{m}}{1.8 \, \text{m}} \approx 7.78
   \]

3. **Round up**:  
   Since you can't purchase a fraction of a length, you'll need to round up to the nearest whole number. So, you'll need:
   \[
   8 \, \text{lengths of garden edging}
   \]

### Answer: You will need to buy 8 lengths of garden edging.

Would you like further details on this solution or have any questions?

Here are 5 related questions to expand on this problem:
1. What would happen if the garden's perimeter was 20 meters?
2. How would the solution change if each garden edging length was 2000 mm?
3. If the garden had a circular perimeter, how would you calculate the required number of lengths?
4. How could you minimize the leftover edging material?
5. What if the garden perimeter was irregular with multiple sides of different lengths?

**Tip**: Always ensure that your units are consistent when solving real-world problems.

Find out how to calculate the number of garden edging pieces needed for a garden with a 14m perimeter. This solution explains the unit conversion from millimeters to meters and uses division and rounding to determine you need 8 pieces of 1.8m long edging. Perfect for students in Grades 6-8.

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